The process whose specific outcome is the progression of nervous tissue over time, from its formation to its mature state.

The process whose specific outcome is the progression of nervous tissue over time, from its formation to its mature state.

The chemotaxis process that directs the migration of an axon growth cone to a specific target site in response to a combination of attractive and repulsive cues.

The process whose specific outcome is the progression of the ventral cord over time, from its formation to the mature structure. The ventral cord is one of the distinguishing traits of the central nervous system of all arthropods (such as insects, crustaceans and arachnids) as well as many other invertebrates, such as the annelid worms.

The establishment, maintenance and elaboration of the dorsal/ventral axis of the imaginal disc. Imaginal disks are masses of hypodermic cells, carried by the larvae of some insects after leaving the egg, from which masses the wings and legs of the adult are subsequently formed.

Formation and/or maintenance of a lineage boundary between dorsal and ventral compartments that cells cannot cross, thus separating the populations of cells in each compartment.

The process in which the anatomical structures of the imaginal disc-derived wing are generated and organized. The wing is an appendage modified for flying.

The process in which the anatomical structures of the imaginal disc-derived wing are generated and organized. The wing is an appendage modified for flying.

The establishment, maintenance and elaboration of the proximal/distal axis of the leg imaginal disc, a precursor to the adult leg.

The process whose specific outcome is the progression of the muscle over time, from its formation to the mature structure. The muscle is an organ consisting of a tissue made up of various elongated cells that are specialized to contract and thus to produce movement and mechanical work.

The process whose specific outcome is the progression of the muscle over time, from its formation to the mature structure. The muscle is an organ consisting of a tissue made up of various elongated cells that are specialized to contract and thus to produce movement and mechanical work.

The process whose specific outcome is the progression of the larval somatic muscle over time, from its formation to the mature structure.

Any process that increases the frequency, rate or extent of gene expression. Gene expression is the process in which a gene's coding sequence is converted into a mature gene product or products (proteins or RNA). This includes the production of an RNA transcript as well as any processing to produce a mature RNA product or an mRNA or circRNA (for protein-coding genes) and the translation of that mRNA or circRNA into protein. Protein maturation is included when required to form an active form of a product from an inactive precursor form.

Progression of the leg imaginal disc over time, from its initial formation through to its metamorphosis to form adult structures including the leg, coxa and ventral thoracic pleura.

Division of an imaginal disc-derived leg into a series of semi-repetitive parts or segments. The Drosophila leg, for example, has nine segments, each separated from the next by a flexible joint.

The commitment of cells to specific cell fates and their capacity to differentiate into particular kinds of cells. Positional information is established through protein signals that emanate from a localized source within a cell (the initial one-cell zygote) or within a developmental field.

Any process that activates or increases the frequency, rate or extent of transcription from an RNA polymerase II promoter.

Any process that activates or increases the frequency, rate or extent of transcription from an RNA polymerase II promoter.

The establishment, maintenance and elaboration of the dorsal/ventral axis of the wing disc, a precursor to the adult wing.

The establishment, maintenance and elaboration of the dorsal/ventral axis of the wing disc, a precursor to the adult wing.

The establishment, maintenance and elaboration of the dorsal/ventral axis of the wing disc, a precursor to the adult wing.

The process in which the anatomical structures of a haltere are generated and organized.

The developmental process in which an anatomical stucture is destroyed as a part of its normal progression.

A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.